Fatigue data for 4140 steel?
Fatigue data for 4140 steel?
(OP)
Does anyone know where I can find a Wöhler-curve (S-N curve) for this material: http ://www.mat web.com/se arch/Speci ficMateria l.asp?bass num=M414BM
Primarily I'm interested in R=-1 and R=0 curves, but any help is greatly appreciated.
Primarily I'm interested in R=-1 and R=0 curves, but any help is greatly appreciated.





RE: Fatigue data for 4140 steel?
http://www.fatiguecalculator.com/
RE: Fatigue data for 4140 steel?
http://barsteelfatigue.autosteel.org/login_bar.asp
RE: Fatigue data for 4140 steel?
RE: Fatigue data for 4140 steel?
RE: Fatigue data for 4140 steel?
In this specific case, there is a published or test value that was used instead of a default value (like fatigue strength= 0.5 * UTS). Certain metals can exhibit hardening or softening behavior under cyclic loading versus monotonic loading conditions.